A kind of liquid crystal display substrate and preparation method thereof

Abstract

The invention provides a manufacturing method of a liquid crystal display substrate. The method comprises the steps of selecting a substrate; adopting an alignment layer material prepared from a solvent and a cleaning agent material according to a certain matching relation for cleaning the substrate, performing baking under the certain temperature for a period of time, removing the surface solventof the substrate and reserving the cleaning agent material; injecting a preset liquid crystal dielectric mixture to the surface of the substrate, after UV treatment is performed, forming a certain tilt angle between liquid crystals in the liquid crystal dielectric mixture, and meanwhile enabling the cleaning agent material and the liquid crystal dielectric mixture to form a polymer film on the surface of the substrate from an alignment agent, wherein the chemical molecular structure adopted by the cleaning agent material includes a front end perssad with the front end anchored to the surfaceof the substrate to improve the liquid crystal dispersity and a rear end perssad with the rear end forming a polymer film through illumination polymerization to ensure the liquid crystal stable tilt angle. According to the method, the surface characteristics of the substrate can be improved, the liquid crystal dispersity is improved, the chromatic aberration occurrence probability is lowered, theliquid crystal alignment stability is improved, and the display credibility is improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display substrate and a preparation method thereof. Background technique [0002] A liquid crystal display is a machine that controls the transmission / blocking of light (display on / off) by controlling the orientation of liquid crystal molecules with birefringence; wherein, the liquid crystal display includes an upper substrate and a lower substrate that are arranged relatively in parallel, and filled in A mixture of liquid crystal media in between. [0003] Usually, a layer of polyimide (PI) alignment material needs to be sprayed on the surface of the upper and lower substrates of the liquid crystal display, which is mainly used to guide the orderly arrangement of liquid crystal molecules, but the PI alignment material has the following disadvantages: (1) The PI alignment material The material is expensive, and the supporting equipment for sprayi...

AI Technical Summary

Problems solved by technology

[0005] However, the inventors have found that the self-alignment liquid crystal material display still has the following problems: on the one hand, the liquid crystal has poor diffusivity on the substrate surface, which easily produces color difference; lower sex

Images